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The Synthesis of Artery Wall Targeted Gene Carrier Using Low Molecular Water-Soluble Chitosan  

Choi Chang-Yong (Department of Polymer Science and Engineering, College of Engineering, Sunchon National University)
Jang Mi-Kyeong (Department of Polymer Science and Engineering, College of Engineering, Sunchon National University)
Nah Jae-Woon (Department of Polymer Science and Engineering, College of Engineering, Sunchon National University)
Publication Information
Polymer(Korea) / v.30, no.4, 2006 , pp. 279-285 More about this Journal
Abstract
Non-viral gene carriers continue to attract a great deal of interest due to advantageous safety profile. Among the non-viral gene carriers, cationic liposomes or synthetic gene carriers are efficient DNA carriers in vitro. but their in vivo applications are greatly hampered because of low biocompatibility. On the other hand, chitosan, a natural cationic polysaccharide, is a candidate non-viral vector for gene delivery because of its low cytotoxicity and high positive charges. In this work, targeted gene carrier was synthesized to target artery wall cells using low molecular water-soluble chitosan (LMWSC). The molecular weight $(M_W)$ and degree of de acetylation (DDA) of LMWSC were measured by relative viscometer and Kina titration. respectively. The structure of LMWSC was analyzed by measuring FTIR, $^1H-NMR,\;and\;^{13}C-NMR$. AWBP-PEG-g-LMWSC was synthesized by conjugation of the artery wall binding peptide (AWBP), a specific targeting peptide, to the end of pegylated LMWSC as a gene carrier to target artery wall cells. The synthesized AWBP-PEG-g-LMWSC were analyzed by measuring FTIR, $^1H-NMR$, zeta -potentiometer, and atomic force microscopy (AFM).
Keywords
low molecular water-soluble chitosan(LMWSC); artery wall binding peptide(AWBP); N-hydroxysuccinimide polyethylene glycol vinyl sulfone(NHS-PEG-VS); non-viral vector;
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